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GPS synchronized frequency/time source

  • US 5,440,313 A
  • Filed: 05/27/1993
  • Issued: 08/08/1995
  • Est. Priority Date: 05/27/1993
  • Status: Expired due to Fees
First Claim
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1. A system comprising:

  • a GPS receiver that receives and produces as output signals GPS information;

    a variable frequency oscillator having a frequency control input terminal and producing an output frequency signal coupled to the GPS receiver;

    data processing means, coupled to receive the output signals produced by the GPS receiver, for producing an error signal indicative of a difference in frequency between a GPS synchronized frequency and the output frequency signal of the variable frequency oscillator; and

    means responsive to said error signal for producing an electronic frequency control signal and for applying the electronic frequency control signal to said frequency control input as to cause said difference in frequency to be reduced.

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